In 1787, Delaware became the first state to ratify the U.S. Constitution.

In 1909, Leo Baekeland patented the process for making Bakelite, giving birth to the modern plastics industry.

In 1925, five-time Olympic gold medalist and future movie Tarzan Johnny Weissmuller set a world record in 150-yard free-style swimming.

In 1931, U.S. President Herbert Hoover refused to see a group of "hunger marchers" at the White House.

In 1941, Japan launched a sneak attack on Pearl Harbor in Hawaii, catapulting the United States into World War II. The Japanese attack left a reported 2,403 dead, 188 destroyed planes and a crippled Pacific Fleet. U.S. President Franklin D. Roosevelt described it as "a date that will live in infamy."

In 1972, Apollo 17 was launched from Cape Canaveral, Fla., on the last scheduled manned mission to the moon.

In 1983, the first execution by lethal injection took place at the state penitentiary in Huntsville, Texas.

In 1986, the speaker of Iran's Parliament said his country would help free more U.S. hostages in Lebanon in exchange for more U.S. arms.

In 1987, Mikhail Gorbachev arrived in Washington, the first Soviet leader to officially visit the United States since 1973.

In 1988, as many as 60,000 people were killed when a powerful earthquake rocked the Soviet republic of Armenia.

In 1991, on the 50th anniversary of Japan's attack on Pearl Harbor, U.S. President George H.W. Bush called for an end to recriminations and sought the healing of old wounds.

In 1992, the destruction of a 16th-century mosque by militant Hindus touched off five days of violence across India that left more than 1,100 people dead.

In 1993, U.S. Energy Secretary Hazel O'Leary revealed the United States had conducted 204 underground nuclear tests from 1963-90 without informing the public.

In 1995, a 2-week strike by hundreds of thousands of French public-sector workers protesting planned cuts in welfare spending spread to cities throughout France.

In 2001, the U.S. Labor Department announced the loss of nearly 1 million jobs over the previous three months.

In 2002, New York authorities downplayed a suspected plot by Colombian rebels to kidnap former Mayor Rudy Giuliani in Mexico City.

Also in 2002, Azra Akin, a 21-year-old model from Turkey, won the Miss World competition, two weeks after Muslim-Christian violence in Nigeria forced organizers to move the pageant to London. More than 200 people were killed in the religious riots.

In 2003, a priest convicted of sexually abusing alter boys, was found beaten to death at his Lexington, Ky., home.

Also in 2003, during a visit to the United States, Chinese Premier Wen Jiabao said "we will never tolerate" Taiwan splitting away from China.

In 2004, U.S. Defense Secretary Donald Rumsfeld said he expected U.S. troops to withdraw from Iraq by 2008, conditions permitting.

Also in 2004, Hamid Karzai was sworn in as Afghanistan's first popularly elected president.

In 2005, U.S. air marshals killed a man who said he had a bomb aboard an American Airlines plane at Miami International Airport. No bomb was found and authorities said the man's wife told them he was mentally ill and had not taken his medication.

Also in 2005, Saddam Hussein's trial in Baghdad resumed but promptly adjourned for two weeks after the deposed Iraqi leader refused to appear in "a court without justice."

A thought for the day: Roscoe Pound said, "The law must be stable, but it must not stand still."